<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>

  <body>
    <script>
      const arr = [1, 8, 6, 2, 5, 4, 8, 3, 7] // const lengthArr=[]
      let max = 0
      for (let i = 0; i < arr.length; i++) {
        for (let j = arr.length - 1; j > i; j--) {
          max =
            Math.min(arr[i], arr[j]) * (j - i) > max
              ? Math.min(arr[i], arr[j]) * (j - i)
              : max //  lengthArr.push(Math.min(arr[i],arr[j])*(j-i))
        }
      } // const num = Math.max(...lengthArr) // console.log(lengthArr); // console.log(num);
      console.log(max)
    </script>
  </body>
</html>
